VI. GYMNOGEA^rMA. 
27 
8. G. CHUYSOPHYLLA, Eatclfuss (Ceropteris, Link). — One of the most beautiful of exotic Perns in cultivation. 
It is an evergreen stove species ; from the West Indies and South America. Fronds from one to two feet long, 
covered beneath with a farinose powder of the richest golden yellow, the upper surface yellowish green ; bipinnate 
having lanceolate acuminate pinnae, and roundish ovate or oblong pinnules, slightly dentate, distant, pinnatifid, 
with medial sori scattered on the veins; terminal, adherent to a fasciculate erect rhizome. This Fern, like most 
others, varies in cultivation according to the treatment it receives ; if subjected to a low temperature, and a 
rather dry atmosphere, the fronds do not exceed ten inches high, are nearly triangular and of the most intense 
golden yellow; but if in a temperature of 85-90'’ Fahrenheit, with proportionate moisture, it then becomes moi’e 
compound, two feet high or more, the segments of the pinnules more serrated, and of an exceedingly bright yellow. 
9. G. Martensii, JBory (G. Mertensii, of gardens). — An elegant evergreen stove Fern ; from South America. 
Fronds delicate, very fragile, one and a-half foot long, covered beneath with a rich yellow farinose powder, the 
upper surface yellowish green ; ovate-lanceolate, bipinnate with lanceolate pinnae, and roundish or elongated 
pinnatifid pinnules, with dentate segments. Sori medial, conliuent, covering nearly every segment of the frond. 
Ehizome tufted. 
10. G. svijViiv'KE.k, Besvaux. — A very elegant dwarf evergreen species; from Jamaica. Fronds from six to 
ten inches long, fragile, and very delicate, the under surface covered with a farinose powder of a bright sulphur 
yellow, upper surface pale green ; bipinnate with lanceolate-acuminate pinni®, and oblong -obtuse pinnatifid 
pinnules, cuneate at the base, the margins dentate. Sori linear, forked, oblique, confluent, nearly covering each 
segment of the pinnules. Fronds terminal, adherent to a fasciculate erect rhizome. 
11. G. CHJittOPHYLLA, Bcsvaux (Anogramma, Link). — A tender delicate fragile annual stove Fern; native 
of the West Indies and various places in South America. Fronds decompound, triangular, bright green, from 
six inches to a foot high, with roundish ovate pinnatifid pinnules, deeply dentate, and cuneate at the base. Tfie 
fertile fronds are erect, and the pinnules very much contracted. 
12. G. LEnoPHYLLA, (Anogramma, XfH/i:; Grammitis, AM>«)-<z;PoLYPODnJM, Linnanis). — An extremely 
delicate annual stove species ; from the South of Europe, Madeira, &c. This little Fern attains the height of but a 
few inches. Its fronds are smooth, somewhat deltoid, bipinnate, with roundish cuneate, two or three lohed pinnules, 
and each lobe bluntly dentate. Sori forked, confluent. Fertile fronds not contracted, and nearly all are fertile, 
13. G. GRACiLB, T. M. — A delicate fragile stove Fern; supposed to he a native of South America. Fronds 
about a foot high, pale green, sparingly covered beneath with white farinose powder ; ovate-triangular, acumi- 
nate, bipinnate ; pinnules inciso-pinnatifid, decurrent at the base, the segments cuneate-bifid or emarginate, tha 
divisions entire and retuse. Stipes long, and as well as the rachis and costa purplish. E,hizome short csespitose. 
Our specimens are imperfect, but they appear distinct. It was introduced to the nursery of Messrs. Hender- 
son of St. John’s Wood last year, and was obtained from Mr. Linden. It seems closely allied to O. conspersa, 
Kunze, from Natal. 
? Leptogeamma . — Sori simple, linear-oMong, 
14. G. viLLOSA, Link (Leptogramma, J. Smith).~A beautiful evergreen stove Fern ; from Brazil. Fronds 
hairy, somewhat lanceolate, hipinnatifid, about two feet long, reclining, with linear- 
lanceolate acuminate pinnae, and rather ovate, bluntly acuminate segments. Sori 
oblong, suhraedial, oblique. Fronds lateral or terminal, adherent to a emspitose creeping 
rhizome. Fig. 7 represents the upper part of a pinna of G. villosa, of medium size. 
15. G. GRAciLE, LLeward (Leptogramma, J. Smith).- — A rather erect growing ever- 
green stove Fern; from Jamaica. Fronds lanceolate-elongate, pinnate, one and a-half 
to two feet long, pale green, pubescent throughout; pinn® sessile, oblong-acuminate ; 
middle ones four to five inches long, gradually decreasing to the base, where they are 
only a quarter of an inch long ; all deeply pjinnatifid, with ohlong-linear repand 
segments, round at the apex, and crenate at the margin. Stipes about an inch long, 
with a few scales at the base. Fronds nearly all fertile throughout; terminal, adherent 
to an erect rhizome. This species was introduced to English collections in 1851. 
16. G. TOTTA, Sehlechtendal (G. Loveii, Hooker et Greville). — An oi'namental evergreen 
warm greenhouse Fern ; a native of Madeira and the Cape of Good Hope. Fronds 
very hairy, lanceolate, pinnate, one to one-and-a-half foot long, palish green ; pinnse 
sessile, oblong, obtuse at the apex, pinnatifid, upper ones adnate-decurrent, with blunt 
lobes. Veins forked or pinnate, the inferior pair of venules occasionally anastomosing. 
Stipes scaly ; terminal, adherent to a decumbent, scaly creeping rhizome. 
17. G. REPENS, 3L. and M. — An ornamental deciduous stove Fern ; a native of the East 
Indies. Fronds slender, broadly lanceolate, one to two feet long, light green, pinnate ; 
pinnfe remote, ohlong-acuminate, four to five inches long, rather membranous, the 
inferior pair or more petiolate, the superior adnate, pinnatifid, with oblong rather 
obtuse segments, crenate or bluntly lohed and hairy on the margin ; the pair next the 
rachis much larger than the others, and deeply pinnatifid with round lobes. Eachis and 
stipes terete, with a few scales at the base ; lateral, adherent to a creeping rhizome, 
about the size of a goose quill. This Fern has been in cultivation for ten or twelve years. 
